I am glad you find those quotes funny. Very true.. jokes can cheers us up. That's what comedy show try to achieve - making everybody laughing out loud. Nevertheless, sad movies gives us good lessons and both are necessary.

The biggest thing I've learned about jokes from many years in Toastmasters is don't ever laugh at your own material. If the audience doesn't laugh, you may have been so unfunny the audience didn't realize you were trying - laughing at yourself clues them in. If you the audience laughs just smile, pause, enjoy it and count your blessings for not botching it!